Trout Town USA

This vignette of Roscoe, New York in the New York Times describes this western Catskills town as a last, best place two hours from Manhattan. Besides being home to respected fly tiers Mary Dette and Poul Jorgensen, it sits astride the Beaverkill and Willowemoc rivers.
Here’s a page from Flyfishingconnection.com that gives much more detail on fishing the Willowemoc, including some nice maps.